The knife narrowly missed Juacelo Nunes' left eye and passed through his mouth into the right side of his jaw.
Bleeding profusely from multiple stab wounds, Nunes travelled 97km from the remote village of Agua Branca to the municipality of Teresina - both in northeastern Piaui state.
Nunes also suffered two knife wounds to his throat, shoulder and chest when he was stabbed after an argument at the party, Sky News reported.
The knife was removed and given to police who are investigating the attack, the doctor told G1 news website.
Albuquerque added that Nunes was recovering surprisingly well.